many users can log in. If you can not login and want to delete your data, Reddit must delete that information. It is data you created and it does not belong to Reddit. Not allowing you delete data you created on their website is Reddit begging for a lawsuit.
you can still delete your conent after being banned from the site. It was a ban, not seizure of your metadata. If you deleted something and Reddit chose to hold onto it, they are asking for a lawsuit.
This will not stop you from deleting your content from Reddit which was obtained for free from you, after they turn around to ban you/deny you access to their services.
we can always build another one. Reddit is nothing without people's data and contributions which is why I advise you to delete your data if they decide to ban your account permanently.
that's strange. You should be able to login to your permanently banned account and delete your data. Reddit is stealing your content if they prevent you from making changes to your data after a permanent ban.